IOWA Two Wild Deer Test Positive for Chronic Wasting Disease in Allamakee County
DNR News Releases
Two Wild Deer Test Positive for Chronic Wasting Disease in Allamakee County
Hunting 2/4/2016 4:26:00 PM Return DES MOINES – Two wild deer harvested in
Allamakee County during the recent hunting season have been confirmed positive
for chronic wasting disease (CWD), marking the third year in a row the disease
has been confirmed in a wild Iowa deer, all in Allamakee County.
“This is disappointing but not altogether surprising,” said Dr. Dale
Garner, chief of Wildlife for the Iowa Department of Natural Resources. “This
region was a focal point for increased surveillance and thanks to hunters in the
area we exceeded our goal of 400 samples. Our next step is to host another
public meeting up there, listen to their concerns and discuss options available
going forward.”
The surveillance zone covered a 140 square mile area in eastern Allamakee
and northeast Clayton County, including the area near Harper’s Ferry. The two
recent CWD positive deer were harvested within two miles of where the previous
positive deer were taken.
Last year, local residents partnered with the Iowa Department of Natural
Resources to collect 85 additional samples after the regular deer seasons. None
of those deer collected tested positive for the disease.
The Iowa Department of Natural Resources is currently working to obtain as
much information as possible about the infected deer to implement its CWD
response plan.
CWD is a neurological disease affecting primarily deer and elk. It is
caused by an abnormal protein, called a prion that attacks the brains of
infected animals, causing them to lose weight, display abnormal behavior and
lose bodily functions. Signs include excessive salivation, thirst and urination,
loss of appetite, progressive weight loss, listlessness and drooping ears and
head. The only reliable test for CWD requires testing of lymph nodes or brain
material after the animal is dead.
There is currently no evidence that humans contract CWD by eating venison.
However, the World Health Organization and the Center for Disease Control and
Prevention recommend that hunters do not eat the brain, eyeballs or spinal cord
of deer and that hunters wear protective gloves while field dressing game and
boning out meat for consumption.
Prior to the positive detection in Iowa, CWD had been previously detected
in every bordering state.
Since 2002, nearly 60,000 wild deer from across the state have been
tested.
Tags Chronic Wasting Disease , CWD , Allamakee County , Iowa
CWD Cases in Iowa: Allamakee and Davis Counties In April 2014, the DNR was
notified that a deer harvested south of Harpers Ferry in Yellow River State
Forest during the 2013 regular gun season tested positive for CWD. This was the
first known case of CWD in a wild deer in the state. In January 2015 three more
CWD positives were reported for deer harvested in 2014 from Allamakee County.
The DNR is implementing a special CWD surveillance plan in Allamakee County
while continuing to implement its existing CWD testing protocols statewide.
As a result of public meetings on February 17, 2015 in Harper’s Ferry and
Waukon, the DNR and local constituents agreed to begin an intensive sample
collection effort in the surveillance area, defined as the sections adjacent to,
and including, the sections where the four positive animals were found. The goal
of this intensive surveillance is to provide more information on the extent and
prevalence of CWD in this area. This information will then be used to guide
decisions for future surveillance efforts and hunting seasons. Additional deer
will be collected beginning on February 21 until March 15th OR when an
additional 200 samples are obtained. The samples will bring the total number
collected in the intensive surveillance area to 300, which will provide a better
understanding of the extent and prevalence of CWD in this area. Only adult deer
will be sampled. Cooperators will be issued permits to collect deer in the
intensive surveillance area only through local DNR wildlife staff.
CWD Frequently Asked Questions General Chronic Wasting Disease (CWD)
information
Allamakee CWD Surveillance Area Map
*** In 2012, three deer tested positive for CWD on a shooting preserve
among captive deer in Davis County. This was the first time CWD was discovered
in the state. These positives were confirmed by the National Veterinary Services
Lab in Ames, Iowa. Below are the Emergency Order, the Emergency Consent Order,
and the Final Decision of the Natural Resource Commission related to the
discovery of CWD-positive deer at the preserve. On Feb. 13th, an Iowa District
Court Judge ruled that the Natural Resources Commission and Department of
Natural Resources do not have authority under current Iowa law to impose a
quarantine on the land and compel the owners to maintain fencing around the
former hunting preserve. That ruling is available on a link below. The Natural
Resources Commission has voted unanimously to appeal the district court ruling
and the Iowa Attorney General’s Office has filed a motion to stay the ruling
until the requested judicial review can take place.
From: Terry S. Singeltary Sr. Sent: Sunday, January 24, 2016 8:51 PM To:
BSE-L@LISTS.AEGEE.ORG Subject: [BSE-L] IOWA CHRONIC WASTING TSE PRION DISEASE
UPDATE
we have not heard much from IOWA lately on CWD from 2015 final hunt
results, to date, but here is the latest on their site on CWD TSE PRION...
IOWA CHRONIC WASTING TSE PRION DISEASE UPDATE
DNR To Continue Surveillance for Chronic Wasting Disease Hunting
11/17/2015 4:13:00 PM
The Iowa DNR’s wildlife staff will be collecting tissue samples during
Iowa’s shotgun deer seasons to test for the presence of Chronic Wasting Disease
(CWD) in Iowa’s wild deer herd.
The effort will concentrate in Allamakee County after four wild deer tested
positive for CWD, and on portions of northeast and eastern Iowa near Wisconsin
and Illinois, south-central Iowa near Missouri, as well as in Pottawattamie,
Cerro Gordo and Buchanan counties, following positive tests in the past from
captive facilities and wild deer in or near those counties.
Most of the 4,500 samples the DNR hopes to collect will be taken during the
first half of December, as more than 120,000 hunters take part in Iowa’s shotgun
deer seasons. Sampling involves removing and testing the brain stem and lymph
nodes of mature deer.
Many hunters voluntarily contribute samples of their harvested deer for
these testing efforts. Most samples are obtained by wildlife staff, checking
with hunters in the field or at home processing points.
Hunters willing to provide samples may contact the DNR regionally to
arrange collection. In Allamakee, Clayton and Winneshiek counties, call
563-380-3422; in Dubuque, Jackson, Clinton, Scott and Delaware counties, call
563-357-2035; in Davis, Wapello, Van Buren and Jefferson counties, call
641-799-0793; in Wayne, Appanoose and Monroe counties, call 641-203-6185; in
Pottawattamie County, call 712-350-0147; in Cerro Gordo County, call
641-425-2814; and in Buchanan County, call 319-213-2815.
Since 2002, more than 51,000 wild deer in Iowa have been tested, with four
positive CWD results in the wild herd detected in Allamakee County, the first in
2013.
Iowa DNR’s website provides information about CWD and other information on
infectious disease at: http://www.iowadnr.gov/Hunting/DeerHunting/CWDEHDInformation.aspx
CWD Cases in Iowa: Allamakee and Davis Counties
In April 2014, the DNR was notified that a deer harvested south of Harpers
Ferry in Yellow River State Forest during the 2013 regular gun season tested
positive for CWD. This was the first known case of CWD in a wild deer in the
state.
In January 2015 three more CWD positives were reported for deer harvested
in 2014 from Allamakee County. The DNR is implementing a special CWD
surveillance plan in Allamakee County while continuing to implement its existing
CWD testing protocols statewide.
As a result of public meetings on February 17, 2015 in Harper’s Ferry and
Waukon, the DNR and local constituents agreed to begin an intensive sample
collection effort in the surveillance area, defined as the sections adjacent to,
and including, the sections where the four positive animals were found. The goal
of this intensive surveillance is to provide more information on the extent and
prevalence of CWD in this area. This information will then be used to guide
decisions for future surveillance efforts and hunting seasons. Additional deer
will be collected beginning on February 21 until March 15th OR when an
additional 200 samples are obtained. The samples will bring the total number
collected in the intensive surveillance area to 300, which will provide a better
understanding of the extent and prevalence of CWD in this area. Only adult deer
will be sampled. Cooperators will be issued permits to collect deer in the
intensive surveillance area only through local DNR wildlife staff.
Allamakee CWD Surveillance Area Map
In 2012, three deer tested positive for CWD on a shooting preserve among
captive deer in Davis County. This was the first time CWD was discovered in the
state. These positives were confirmed by the National Veterinary Services Lab in
Ames, Iowa. Below are the Emergency Order, the Emergency Consent Order, and the
Final Decision of the Natural Resource Commission related to the discovery of
CWD-positive deer at the preserve.
On Feb. 13th, an Iowa District Court Judge ruled that the Natural Resources
Commission and Department of Natural Resources do not have authority under
current Iowa law to impose a quarantine on the land and compel the owners to
maintain fencing around the former hunting preserve.
That ruling is available on a link below.
The Natural Resources Commission has voted unanimously to appeal the
district court ruling and the Iowa Attorney General’s Office has filed a motion
to stay the ruling until the requested judicial review can take place.
◾ DNR Emergency Order, issued June 6, 2013
◾ DNR Emergency Consent Order, agreed upon July 3, 2013
◾Final Decision of the Natural Resource Commission, issued May 28, 2014
◾Iowa District Court Ruling February 13, 2015
Chronic Wasting Disease
In 2013– 2014 Iowa Department of Natural Resources (IDNR) staff collected
brainstems and medial retropharyngeal lymph nodes from 4,040 (62 targeted, 10%
road kills, 38% adult males) wild (Fig. 2) and 304 captive whitetail deer, 4
free-ranging elk, 1 red deer and 1 fallow deer for Chronic Wasting Disease (CWD)
testing. Twenty samples from wild deer, 3 from elk and the red and fallow deer
were submitted to the National Veterinary Services Laboratory in Ames, Iowa and
4,325 (4,020 wild and 304 captive deer and 1 free-ranging elk) samples were
submitted to Texas Veterinary Medical Diagnostic Laboratory. Although the
majority of samples (38%) from wild deer were collected from eleven counties in
northeast Iowa, the area closest to the Wisconsin and Illinois CWD endemic areas
and Minnesota’s southeast containment area, sampling effort also concentrated on
3 areas surrounding captive facilities that had animals test positive in Iowa in
2012. Twenty two percent were from south-central Iowa. This area is north of the
area where Missouri’s positive CWD deer have been found. Since 2002, Iowa has
tested 50,998 wild deer and 3,429 captive deer and elk. Three captive deer
collected by IDNR staff in 2012 tested positive for presence of PrP protein. On
April 8, 2014, notification was received from NVSL confirming CWD in a sample
collected from an adult wild male white-tailed deer harvested during the fall
firearms season in Allamakee County in northeast Iowa. This is the first
positive from wild deer to date. Efforts are currently underway to gather
additional information on the deer herd in the vacitinity where the positive
animal was harvested.
Iowa CWD sample location sites for wild deer, 2013-14.
For Immediate Release Thursday, October 2, 2014
Dustin Vande Hoef 515/281-3375 or 515/326-1616 (cell) or
Dustin.VandeHoef@IowaAgriculture.gov
*** TEST RESULTS FROM CAPTIVE DEER HERD WITH CHRONIC WASTING DISEASE
RELEASED 79.8 percent of the deer tested positive for the disease ***
DES MOINES – The Iowa Department of Agriculture and Land Stewardship today
announced that the test results from the depopulation of a quarantined captive
deer herd in north-central Iowa showed that 284 of the 356 deer, or 79.8% of the
herd, tested positive for Chronic Wasting Disease (CWD).
*** see history of this CWD blunder here ;
On June 5, 2013, DNR conducted a fence inspection, after gaining approval
from surrounding landowners, and confirmed that the fenced had been cut or
removed in at least four separate locations; that the fence had degraded and was
failing to maintain the enclosure around the Quarantined Premises in at least
one area; that at least three gates had been opened;and that deer tracks were
visible in and around one of the open areas in the sand on both sides of the
fence, evidencing movement of deer into the Quarantined Premises.
***79.8 percent of the deer tested positive for the disease ***
***test results from the depopulation of a quarantined captive deer herd in
north-central Iowa showed that 284 of the 356 deer, or 79.8% of the herd, tested
positive for Chronic Wasting Disease (CWD). ***
For Immediate Release
Thursday, October 2, 2014
Dustin Vande Hoef 515/281-3375 or 515/326-1616 (cell) or
Dustin.VandeHoef@IowaAgriculture.gov Share on facebook Share on twitter Share on
email Share on print More Sharing Services 1
TEST RESULTS FROM CAPTIVE DEER HERD WITH CHRONIC WASTING DISEASE RELEASED
79.8 percent of the deer tested positive for the disease
DES MOINES – The Iowa Department of Agriculture and Land Stewardship today
announced that the test results from the depopulation of a quarantined captive
deer herd in north-central Iowa showed that 284 of the 356 deer, or 79.8% of the
herd, tested positive for Chronic Wasting Disease (CWD). The owners of the
quarantined herd have entered into a fence maintenance agreement with the Iowa
Department of Agriculture and Land Stewardship, which requires the owners to
maintain the 8’ foot perimeter fence around the herd premises for five years
after the depopulation was complete and the premises had been cleaned and
disinfected
CWD is a progressive, fatal, degenerative neurological disease of farmed
and free-ranging deer, elk, and moose. There is no known treatment or vaccine
for CWD. CWD is not a disease that affects humans.
On July 18, 2012, USDA Animal and Plant Health Inspection Service’s (APHIS)
National Veterinary Services Lab in Ames, IA confirmed that a male white tail
deer harvested from a hunting preserve in southeast IA was positive for CWD. An
investigation revealed that this animal had just been introduced into the
hunting preserve from the above-referenced captive deer herd in north-central
Iowa.
The captive deer herd was immediately quarantined to prevent the spread of
CWD. The herd has remained in quarantine until its depopulation on August 25 to
27, 2014.
The Iowa Department of Agriculture and Land Stewardship participated in a
joint operation to depopulate the infected herd with USDA Veterinary Services,
which was the lead agency, and USDA Wildlife Services.
Federal indemnity funding became available in 2014. USDA APHIS appraised
the captive deer herd of 376 animals at that time, which was before depopulation
and testing, at $1,354,250. At that time a herd plan was developed with the
owners and officials from USDA and the Iowa Department of Agriculture and Land
Stewardship.
Once the depopulation was complete and the premises had been cleaned and
disinfected, indemnity of $917,100.00 from the USDA has been or will be paid to
the owners as compensation for the 356 captive deer depopulated.
The Iowa Department of Agriculture and Land Stewardship operates a
voluntary CWD program for farms that sell live animals. Currently 145 Iowa farms
participate in the voluntary program. The above-referenced captive deer facility
left the voluntary CWD program prior to the discovery of the disease as they had
stopped selling live animals. All deer harvested in a hunting preserve must be
tested for CWD.
-30-
*** Federal indemnity funding became available in 2014. USDA APHIS
appraised the captive deer herd of 376 animals at that time, which was before
depopulation and testing, at $1,354,250.
*** At that time a herd plan was developed with the owners and officials
from USDA and the Iowa Department of Agriculture and Land Stewardship.
*** Once the depopulation was complete and the premises had been cleaned
and disinfected, indemnity of $917,100.00 from the USDA has been or will be paid
to the owners as compensation for the 356 captive deer depopulated.
SEE A FEW OF WISCONSIN CWD ENTITLEMENT PAYOUTS TO CAPTIVE OWNERS ;
$298,770 + $465,000
Sunday, January 17, 2016
Wisconsin Captive CWD Lotto Pays Out Again indemnity payment of $298,770
for 228 white-tailed deer killed on farm
this does not look good ;
Tuesday, January 19, 2016
Wisconsin Second CWD-positive deer found in Oneida County 5-year-old buck
shot at Three Lakes Trophy Ranch LLC agency received the CWD-positive report on
the animal Dec. 29
course in Texas, we still don’t know the true captive cwd count. more to
come there ;
Saturday, January 23, 2016
Texas new interim rule governing Deer Management Permit (DMP) activities as
part of the state’s response to the detection of chronic wasting disease (CWD)
in captive deer populations
Saturday, January 23, 2016
Texas Chronic Wasting Disease Response Update and Interim Deer Management
Permit Rules Recommended Adoption of Proposed Rules
or, just follow the money (see at bottom)
Thursday, January 21, 2016
INDIANA With end of long legal challenge last year, high-fence hunting
operations currently unregulated
Wednesday, October 07, 2015
Iowa DNR Meeting to Discuss Chronic Wasting Disease in Deer Set for Oct
13th in Bloomfield
Tuesday, January 20, 2015
Iowa Two Wild Deer Test Positive for Chronic Wasting Disease in Allamakee
County
Wednesday, April 09, 2014
Iowa : Chronic Wasting Disease Detected for First Time in Wild Iowa Deer
Sunday, January 24, 2016
IOWA CHRONIC WASTING TSE PRION DISEASE UPDATE
game farms help spread cwd, simple fact. it’s been proven. game farms are
not the only risk factor though, however, they are a big part of the problem,
history shows this.
the quarantine of cwd tse prion infected game farms must be extended to 16
years now.
the CWD LOTTO ENTITLEMENT of captive game farms where the states pays game
farms for CWD MUST BE STOPPED. if the cwd infected farm does not buy insurance
for any and all loss from CWD for them and any party that does business with
them, and or any loss to the state, and or any products there from, that’s to
bad, they should never be allowed to be permitted. in fact, for any state that
does allow game farming, urine mills, sperm mills, antler mills, velvet mills,
big high fence ranch, little low fence farm, in my opinion, it’s that states
responsibility to protect that state, thus, any states that allow these farms
and business there from, it should be mandatory before any permit is allowed,
that game farm must have enough personal insurance that would cover that farm,
any farm that does business with them, and or any products there from, and the
state, before such permit is issued. personally, I am sick and tired of all the
big ag entitlement programs, and that’s all cwd indemnity is. in fact, the USDA
CWD INDEMNITY PROGRAM, should read, THE USDA CWD ENTITLEMENT PROGRAM.
we cannot, and must not, let the industry regulate itself, especially with
the junk science they try to use.
if they are not going to be science based, they must be banned.
science has told us for 3 decade or longer, that these are the things that
_might_ work, yet thanks to the industry, and government catering to industry,
regulations there from have failed, because of catering to the industry, and the
cwd tse prion agent has continued to spread during this time. a fine example is
Texas.
HIGHEST INFECTION RATE ON SEVERAL CWD CONFIRMED CAPTIVES
CHRONIC WASTING DISEASE CWD WISCONSIN Almond Deer (Buckhorn Flats) Farm
Update DECEMBER 2011
The CWD infection rate was nearly 80%, the highest ever in a North American
captive herd.
RECOMMENDATION: That the Board approve the purchase of 80 acres of land for
$465,000 for the Statewide Wildlife Habitat Program in Portage County and
approve the restrictions on public use of the site.
SUMMARY:
State pays farmer $298,000 for infected deer herd
Jan. 16, 2016 8:05 p.m.
The State of Wisconsin paid nearly $300,000 to the Eau Claire County farmer
whose deer herd was depopulated after it was found to be infected with chronic
wasting disease.
Rick Vojtik, owner of Fairchild Whitetails in Fairchild, received an
indemnity payment of $298,770 for 228 white-tailed deer killed on his farm,
according to officials with the Department of Agriculture, Trade and Consumer
Protection.
The money was taken from the agency's general program revenue funded by
Wisconsin taxpayers.
CHRONIC WASTING DISEASE CWD WISCONSIN Almond Deer (Buckhorn Flats) Farm
Update DECEMBER 2011
The CWD infection rate was nearly 80%, the highest ever in a North American
captive herd.
RECOMMENDATION: That the Board approve the purchase of 80 acres of land for
$465,000 for the Statewide Wildlife Habitat Program in Portage County and
approve the restrictions on public use of the site.
SUMMARY:
$298,770 + $465,000
THE CWD ENTITLEMENT PROGRAM FOR GAME FARMS MUST BE STOPPED!
Friday, January 29, 2016
Wisconsin CWD-positive white-tailed deer found on Iowa County farm January
29, 2016
*** TEST RESULTS FROM CAPTIVE DEER HERD WITH CHRONIC WASTING DISEASE
RELEASED 79.8 percent of the deer tested positive for the disease
DES MOINES – The Iowa Department of Agriculture and Land Stewardship today
announced that the test results from the depopulation of a quarantined captive
deer herd in north-central Iowa showed that 284 of the 356 deer, or 79.8% of the
herd, tested positive for Chronic Wasting Disease (CWD).
*** see history of this CWD blunder here ;
On June 5, 2013, DNR conducted a fence inspection, after gaining approval
from surrounding landowners, and confirmed that the fenced had been cut or
removed in at least four separate locations; that the fence had degraded and was
failing to maintain the enclosure around the Quarantined Premises in at least
one area; that at least three gates had been opened;and that deer tracks were
visible in and around one of the open areas in the sand on both sides of the
fence, evidencing movement of deer into the Quarantined Premises.
The overall incidence of clinical CWD in white-tailed deer was 82%
Species (cohort) CWD (cases/total) Incidence (%) Age at CWD death (mo)
”The occurrence of CWD must be viewed against the contest of the locations
in which it occurred. It was an incidental and unwelcome complication of the
respective wildlife research programmes. Despite it’s subsequent recognition as
a new disease of cervids, therefore justifying direct investigation, no specific
research funding was forthcoming. The USDA veiwed it as a wildlife problem and
consequently not their province!” page 26.
Thursday, January 21, 2016
INDIANA With end of long legal challenge last year, high-fence hunting
operations currently unregulated
Tuesday, December 29, 2015
*** TEXAS MONTHLY CHRONIC WASTING DISEASE CWD JANUARY 2016 DEER BREEDERS
STILL DON'T GET IT $
Chronic Wasting Unease
*** The emergence of a deadly disease has wildlife officials and deer
breeders eyeing each other suspiciously. ***
game farms help spread cwd, simple fact. it’s been proven. game farms are
not the only risk factor though, however, they are a big part of the problem,
history shows this.
the quarantine of cwd tse prion infected game farms must be extended to 16
years now.
the CWD LOTTO ENTITLEMENT of captive game farms where the states pays game
farms for CWD MUST BE STOPPED. if the cwd infected farm does not buy insurance
for any and all loss from CWD for them and any party that does business with
them, and or any loss to the state, and or any products there from, that’s to
bad, they should never be allowed to be permitted. in fact, for any state that
does allow game farming, urine mills, sperm mills, antler mills, velvet mills,
big high fence ranch, little low fence farm, in my opinion, it’s that states
responsibility to protect that state, thus, any states that allow these farms
and business there from, it should be mandatory before any permit is allowed,
that game farm must have enough personal insurance that would cover that farm,
any farm that does business with them, and or any products there from, and the
state, before such permit is issued. personally, I am sick and tired of all the
big ag entitlement programs, and that’s all cwd indemnity is. in fact, the USDA
CWD INDEMNITY PROGRAM, should read, THE USDA CWD ENTITLEMENT PROGRAM.
we cannot, and must not, let the industry regulate itself, especially with
the junk science they try to use.
if they are not going to be science based, they must be banned.
science has told us for 3 decade or longer, that these are the things that
_might_ work, yet thanks to the industry, and government catering to industry,
regulations there from have failed, because of catering to the industry, and the
cwd tse prion agent has continued to spread during this time. a fine example is
Texas.
Sunday, January 17, 2016
Texas 10,000 deer in Texas tested for deadly disease CWD TSE, but not
tested much in the most logical place, the five-mile radius around the Medina
County captive-deer facility where it was discovered
Friday, January 15, 2016
TEXAS PARKS & WILDLIFE CWD Ante-Mortem Testing Symposium Texas Disposal
Systems Events Pavilion January 12, 2016
Research Project: TRANSMISSION, DIFFERENTIATION, AND PATHOBIOLOGY OF
TRANSMISSIBLE SPONGIFORM ENCEPHALOPATHIES
***Title: Transmission of chronic wasting disease to sentinel reindeer
(Rangifer tarandus tarandus)
Authors
item Moore, S - item Kunkle, Robert item Nicholson, Eric item Richt,
Juergen item Hamir, Amirali item Waters, Wade item Greenlee, Justin
Submitted to: American College of Veterinary Pathologists Meeting
Publication Type: Abstract Only Publication Acceptance Date: August 12, 2015
Publication Date: N/A
Technical Abstract:
Chronic wasting disease (CWD) is a naturally-occurring, fatal
neurodegenerative disease of North American cervids. Reindeer (Rangifer tarandus
tarandus) are susceptible to CWD following oral challenge, but CWD has not been
reported in free-ranging caribou (Rangifer tarandus caribou) or farmed reindeer.
Potential contact between CWD-affected cervids and Rangifer species that are
free-ranging or co-housed on farms presents a potential risk of CWD
transmission. The aims of this study were to 1) investigate the transmission of
CWD from white-tailed deer (Odocoileus virginianus; CWD-wtd), mule deer
(Odocoileus hemionus; CWD-md), or elk (Cervus elaphus nelsoni; CWD-elk) to
reindeer via the intracranial route, and 2) to assess for direct and indirect
horizontal transmission to non-inoculated sentinels. Three groups of 5 reindeer
fawns were challenged intracranially with CWD-wtd, CWD-md, or CWD-elk. Two years
after challenge of inoculated reindeer, non-inoculated control reindeer were
introduced into the same pen as the CWD-wtd inoculated reindeer (n=4) or into a
pen adjacent to the CWD-md inoculated reindeer (n=2). Reindeer were allowed to
develop clinical disease. At death/euthanasia a complete necropsy examination
was performed, including immunohistochemical testing of tissues for
disease-associated CWD prion protein (PrP-CWD). Intracranially challenged
reindeer developed clinical disease from 21 months post-inoculation (MPI).
PrP-CWD was detected in 5/6 sentinel reindeer although only 2/6 developed
clinical disease during the study period (<57 div="" mpi="">
***We have shown that reindeer are susceptible to CWD from various cervid
sources and can transmit CWD to naive reindeer both directly and indirectly.
Last Modified: 12/3/2015
***PrP-CWD was detected in 5/6 sentinel reindeer although only 2/6
developed clinical disease during the study period (<57 div="" mpi="">
***We have shown that reindeer are susceptible to CWD from various cervid
sources and can transmit CWD to naive reindeer both directly and indirectly.
Tuesday, September 29, 2015
*** Transmission of chronic wasting disease to sentinel reindeer (Rangifer
tarandus tarandus) can transmit CWD to naive reindeer both directly and
indirectly
Research Project: TRANSMISSION, DIFFERENTIATION, AND PATHOBIOLOGY OF
TRANSMISSIBLE SPONGIFORM ENCEPHALOPATHIES
CHRONIC WASTING DISEASE CWD TSE PRION AKA MAD COW TYPE DISEASE
Friday, January 01, 2016
Bayesian Modeling of Prion Disease Dynamics in Mule Deer Using Population
Monitoring and Capture-Recapture Data
Chris Geremia, Michael W. Miller, Jennifer A. Hoeting, Michael F. Antolin,
N. Thompson Hobbs PLOS x Published: October 28, 2015 DOI:
10.1371/journal.pone.0140687
Abstract
Epidemics of chronic wasting disease (CWD) of North American Cervidae have
potential to harm ecosystems and economies. We studied a migratory population of
mule deer (Odocoileus hemionus) affected by CWD for at least three decades using
a Bayesian framework to integrate matrix population and disease models with
long-term monitoring data and detailed process-level studies. We hypothesized
CWD prevalence would be stable or increase between two observation periods
during the late 1990s and after 2010, with higher CWD prevalence making deer
population decline more likely. The weight of evidence suggested a reduction in
the CWD outbreak over time, perhaps in response to intervening harvest-mediated
population reductions. Disease effects on deer population growth under current
conditions were subtle with a 72% chance that CWD depressed population growth.
With CWD, we forecasted a growth rate near one and largely stable deer
population. Disease effects appear to be moderated by timing of infection,
prolonged disease course, and locally variable infection. Long-term outcomes
will depend heavily on whether current conditions hold and high prevalence
remains a localized phenomenon.
Discussion
The protracted time-scale of the CWD outbreak is much longer than the
timespan of our research, which limits our ability to identify the true
explanation of our findings. Nonetheless, our research suggests that, at least
for the foreseeable future (e.g., decades), mule deer populations sharing the
overall survival and infection probabilities estimated from our analyses may
persist but likely will not thrive where CWD becomes established as an endemic
infectious disease.
‘’Nonetheless, our research suggests that, at least for the foreseeable
future (e.g., decades), mule deer populations sharing the overall survival and
infection probabilities estimated from our analyses may persist but likely will
not thrive where CWD becomes established as an endemic infectious disease. ‘’
*** Bayesian Modeling of Prion Disease Dynamics in Mule Deer Using
Population Monitoring and Capture-Recapture Data
‘’Mountain lions prey selectively on CWD infected deer [33] and CWD could
result in an abundance of vulnerable prey, thereby enhancing mountain lion
survival and reproduction [20].’’
please see ;
‘’preliminary results suggesting that bobcats (Lynx rufus) may be
susceptible to white-tailed deer (Odocoileus virginianus) chronic wasting
disease agent.’’
references on Feline Spongiform Encephalopathy FSE toward the bottom, see ;
Assessing Transmissible Spongiform Encephalopathy Species Barriers with an
In Vitro Prion Protein Conversion Assay
Tuesday, December 15, 2015
Chronic Wasting Disease will cause a Wyoming deer herd to go virtually
extinct in 41 years, a five-year study predicts
Study: Chronic Wasting Disease kills 19% of deer herd annually
*** Infectious agent of sheep scrapie may persist in the environment for at
least 16 years ***
Gudmundur Georgsson1, Sigurdur Sigurdarson2 and Paul Brown3
*** Spraker suggested an interesting explanation for the occurrence of CWD.
The deer pens at the Foot Hills Campus were built some 30-40 years ago by a Dr.
Bob Davis. At or abut that time, allegedly, some scrapie work was conducted at
this site. When deer were introduced to the pens they occupied ground that had
previously been occupied by sheep.
PL1
Using in vitro prion replication for high sensitive detection of prions and
prionlike proteins and for understanding mechanisms of transmission.
Claudio Soto
Mitchell Center for Alzheimer's diseases and related Brain disorders,
Department of Neurology, University of Texas Medical School at Houston.
Prion and prion-like proteins are misfolded protein aggregates with the
ability to selfpropagate to spread disease between cells, organs and in some
cases across individuals. I n T r a n s m i s s i b l e s p o n g i f o r m
encephalopathies (TSEs), prions are mostly composed by a misfolded form of the
prion protein (PrPSc), which propagates by transmitting its misfolding to the
normal prion protein (PrPC). The availability of a procedure to replicate prions
in the laboratory may be important to study the mechanism of prion and
prion-like spreading and to develop high sensitive detection of small quantities
of misfolded proteins in biological fluids, tissues and environmental samples.
Protein Misfolding Cyclic Amplification (PMCA) is a simple, fast and efficient
methodology to mimic prion replication in the test tube. PMCA is a platform
technology that may enable amplification of any prion-like misfolded protein
aggregating through a seeding/nucleation process. In TSEs, PMCA is able to
detect the equivalent of one single molecule of infectious PrPSc and propagate
prions that maintain high infectivity, strain properties and species
specificity. Using PMCA we have been able to detect PrPSc in blood and urine of
experimentally infected animals and humans affected by vCJD with high
sensitivity and specificity. Recently, we have expanded the principles of PMCA
to amplify amyloid-beta (Aβ) and alphasynuclein (α-syn) aggregates implicated in
Alzheimer's and Parkinson's diseases, respectively. Experiments are ongoing to
study the utility of this technology to detect Aβ and α-syn aggregates in
samples of CSF and blood from patients affected by these diseases.
=========================
***Recently, we have been using PMCA to study the role of environmental
prion contamination on the horizontal spreading of TSEs. These experiments have
focused on the study of the interaction of prions with plants and
environmentally relevant surfaces. Our results show that plants (both leaves and
roots) bind tightly to prions present in brain extracts and excreta (urine and
feces) and retain even small quantities of PrPSc for long periods of time.
Strikingly, ingestion of prioncontaminated leaves and roots produced disease
with a 100% attack rate and an incubation period not substantially longer than
feeding animals directly with scrapie brain homogenate. Furthermore, plants can
uptake prions from contaminated soil and transport them to different parts of
the plant tissue (stem and leaves). Similarly, prions bind tightly to a variety
of environmentally relevant surfaces, including stones, wood, metals, plastic,
glass, cement, etc. Prion contaminated surfaces efficiently transmit prion
disease when these materials were directly injected into the brain of animals
and strikingly when the contaminated surfaces were just placed in the animal
cage. These findings demonstrate that environmental materials can efficiently
bind infectious prions and act as carriers of infectivity, suggesting that they
may play an important role in the horizontal transmission of the disease.
========================
Since its invention 13 years ago, PMCA has helped to answer fundamental
questions of prion propagation and has broad applications in research areas
including the food industry, blood bank safety and human and veterinary disease
diagnosis.
see ;
Wednesday, December 16, 2015
Objects in contact with classical scrapie sheep act as a reservoir for
scrapie transmission
Objects in contact with classical scrapie sheep act as a reservoir for
scrapie transmission
Timm Konold1*, Stephen A. C. Hawkins2, Lisa C. Thurston3, Ben C. Maddison4,
Kevin C. Gough5, Anthony Duarte1 and Hugh A. Simmons1
1 Animal Sciences Unit, Animal and Plant Health Agency Weybridge,
Addlestone, UK, 2 Pathology Department, Animal and Plant Health Agency
Weybridge, Addlestone, UK, 3 Surveillance and Laboratory Services, Animal and
Plant Health Agency Penrith, Penrith, UK, 4 ADAS UK, School of Veterinary
Medicine and Science, University of Nottingham, Sutton Bonington, UK, 5 School
of Veterinary Medicine and Science, University of Nottingham, Sutton Bonington,
UK
Classical scrapie is an environmentally transmissible prion disease of
sheep and goats. Prions can persist and remain potentially infectious in the
environment for many years and thus pose a risk of infecting animals after
re-stocking. In vitro studies using serial protein misfolding cyclic
amplification (sPMCA) have suggested that objects on a scrapie affected sheep
farm could contribute to disease transmission. This in vivo study aimed to
determine the role of field furniture (water troughs, feeding troughs, fencing,
and other objects that sheep may rub against) used by a scrapie-infected sheep
flock as a vector for disease transmission to scrapie-free lambs with the prion
protein genotype VRQ/VRQ, which is associated with high susceptibility to
classical scrapie. When the field furniture was placed in clean accommodation,
sheep became infected when exposed to either a water trough (four out of five)
or to objects used for rubbing (four out of seven). This field furniture had
been used by the scrapie-infected flock 8 weeks earlier and had previously been
shown to harbor scrapie prions by sPMCA. Sheep also became infected (20 out of
23) through exposure to contaminated field furniture placed within pasture not
used by scrapie-infected sheep for 40 months, even though swabs from this
furniture tested negative by PMCA. This infection rate decreased (1 out of 12)
on the same paddock after replacement with clean field furniture. Twelve grazing
sheep exposed to field furniture not in contact with scrapie-infected sheep for
18 months remained scrapie free. The findings of this study highlight the role
of field furniture used by scrapie-infected sheep to act as a reservoir for
disease re-introduction although infectivity declines considerably if the field
furniture has not been in contact with scrapie-infected sheep for several
months. PMCA may not be as sensitive as VRQ/VRQ sheep to test for environmental
contamination.
snip...
Discussion
Classical scrapie is an environmentally transmissible disease because it
has been reported in naïve, supposedly previously unexposed sheep placed in
pastures formerly occupied by scrapie-infected sheep (4, 19, 20). Although the
vector for disease transmission is not known, soil is likely to be an important
reservoir for prions (2) where – based on studies in rodents – prions can adhere
to minerals as a biologically active form (21) and remain infectious for more
than 2 years (22). Similarly, chronic wasting disease (CWD) has re-occurred in
mule deer housed in paddocks used by infected deer 2 years earlier, which was
assumed to be through foraging and soil consumption (23).
Our study suggested that the risk of acquiring scrapie infection was
greater through exposure to contaminated wooden, plastic, and metal surfaces via
water or food troughs, fencing, and hurdles than through grazing. Drinking from
a water trough used by the scrapie flock was sufficient to cause infection in
sheep in a clean building. Exposure to fences and other objects used for rubbing
also led to infection, which supported the hypothesis that skin may be a vector
for disease transmission (9). The risk of these objects to cause infection was
further demonstrated when 87% of 23 sheep presented with PrPSc in lymphoid
tissue after grazing on one of the paddocks, which contained metal hurdles, a
metal lamb creep and a water trough in contact with the scrapie flock up to 8
weeks earlier, whereas no infection had been demonstrated previously in sheep
grazing on this paddock, when equipped with new fencing and field furniture.
When the contaminated furniture and fencing were removed, the infection rate
dropped significantly to 8% of 12 sheep, with soil of the paddock as the most
likely source of infection caused by shedding of prions from the
scrapie-infected sheep in this paddock up to a week earlier.
This study also indicated that the level of contamination of field
furniture sufficient to cause infection was dependent on two factors: stage of
incubation period and time of last use by scrapie-infected sheep. Drinking from
a water trough that had been used by scrapie sheep in the predominantly
pre-clinical phase did not appear to cause infection, whereas infection was
shown in sheep drinking from the water trough used by scrapie sheep in the later
stage of the disease. It is possible that contamination occurred through
shedding of prions in saliva, which may have contaminated the surface of the
water trough and subsequently the water when it was refilled. Contamination
appeared to be sufficient to cause infection only if the trough was in contact
with sheep that included clinical cases. Indeed, there is an increased risk of
bodily fluid infectivity with disease progression in scrapie (24) and CWD (25)
based on PrPSc detection by sPMCA. Although ultraviolet light and heat under
natural conditions do not inactivate prions (26), furniture in contact with the
scrapie flock, which was assumed to be sufficiently contaminated to cause
infection, did not act as vector for disease if not used for 18 months, which
suggest that the weathering process alone was sufficient to inactivate prions.
PrPSc detection by sPMCA is increasingly used as a surrogate for
infectivity measurements by bioassay in sheep or mice. In this reported study,
however, the levels of PrPSc present in the environment were below the limit of
detection of the sPMCA method, yet were still sufficient to cause infection of
in-contact animals. In the present study, the outdoor objects were removed from
the infected flock 8 weeks prior to sampling and were positive by sPMCA at very
low levels (2 out of 37 reactions). As this sPMCA assay also yielded 2 positive
reactions out of 139 in samples from the scrapie-free farm, the sPMCA assay
could not detect PrPSc on any of the objects above the background of the assay.
False positive reactions with sPMCA at a low frequency associated with de novo
formation of infectious prions have been reported (27, 28). This is in contrast
to our previous study where we demonstrated that outdoor objects that had been
in contact with the scrapie-infected flock up to 20 days prior to sampling
harbored PrPSc that was detectable by sPMCA analysis [4 out of 15 reactions
(12)] and was significantly more positive by the assay compared to analogous
samples from the scrapie-free farm. This discrepancy could be due to the use of
a different sPMCA substrate between the studies that may alter the efficiency of
amplification of the environmental PrPSc. In addition, the present study had a
longer timeframe between the objects being in contact with the infected flock
and sampling, which may affect the levels of extractable PrPSc. Alternatively,
there may be potentially patchy contamination of this furniture with PrPSc,
which may have been missed by swabbing. The failure of sPMCA to detect
CWD-associated PrP in saliva from clinically affected deer despite confirmation
of infectivity in saliva-inoculated transgenic mice was associated with as yet
unidentified inhibitors in saliva (29), and it is possible that the sensitivity
of sPMCA is affected by other substances in the tested material. In addition,
sampling of amplifiable PrPSc and subsequent detection by sPMCA may be more
difficult from furniture exposed to weather, which is supported by the
observation that PrPSc was detected by sPMCA more frequently in indoor than
outdoor furniture (12). A recent experimental study has demonstrated that
repeated cycles of drying and wetting of prion-contaminated soil, equivalent to
what is expected under natural weathering conditions, could reduce PMCA
amplification efficiency and extend the incubation period in hamsters inoculated
with soil samples (30). This seems to apply also to this study even though the
reduction in infectivity was more dramatic in the sPMCA assays than in the sheep
model. Sheep were not kept until clinical end-point, which would have enabled us
to compare incubation periods, but the lack of infection in sheep exposed to
furniture that had not been in contact with scrapie sheep for a longer time
period supports the hypothesis that prion degradation and subsequent loss of
infectivity occurs even under natural conditions.
In conclusion, the results in the current study indicate that removal of
furniture that had been in contact with scrapie-infected animals should be
recommended, particularly since cleaning and decontamination may not effectively
remove scrapie infectivity (31), even though infectivity declines considerably
if the pasture and the field furniture have not been in contact with
scrapie-infected sheep for several months. As sPMCA failed to detect PrPSc in
furniture that was subjected to weathering, even though exposure led to
infection in sheep, this method may not always be reliable in predicting the
risk of scrapie infection through environmental contamination. These results
suggest that the VRQ/VRQ sheep model may be more sensitive than sPMCA for the
detection of environmentally associated scrapie, and suggest that extremely low
levels of scrapie contamination are able to cause infection in susceptible sheep
genotypes.
Keywords: classical scrapie, prion, transmissible spongiform
encephalopathy, sheep, field furniture, reservoir, serial protein misfolding
cyclic amplification
Wednesday, December 16, 2015
*** Objects in contact with classical scrapie sheep act as a reservoir for
scrapie transmission ***
Circulation of prions within dust on a scrapie affected farm
Kevin C Gough1, Claire A Baker2, Hugh A Simmons3, Steve A Hawkins3 and Ben
C Maddison2*
Abstract
Prion diseases are fatal neurological disorders that affect humans and
animals. Scrapie of sheep/goats and Chronic Wasting Disease (CWD) of deer/elk
are contagious prion diseases where environmental reservoirs have a direct link
to the transmission of disease. Using protein misfolding cyclic amplification we
demonstrate that scrapie PrPSc can be detected within circulating dusts that are
present on a farm that is naturally contaminated with sheep scrapie. The
presence of infectious scrapie within airborne dusts may represent a possible
route of infection and illustrates the difficulties that may be associated with
the effective decontamination of such scrapie affected premises.
snip...
Discussion
We present biochemical data illustrating the airborne movement of scrapie
containing material within a contaminated farm environment. We were able to
detect scrapie PrPSc within extracts from dusts collected over a 70 day period,
in the absence of any sheep activity. We were also able to detect scrapie PrPSc
within dusts collected within pasture at 30 m but not at 60 m distance away from
the scrapie contaminated buildings, suggesting that the chance of contamination
of pasture by scrapie contaminated dusts decreases with distance from
contaminated farm buildings. PrPSc amplification by sPMCA has been shown to
correlate with infectivity and amplified products have been shown to be
infectious [14,15]. These experiments illustrate the potential for low dose
scrapie infectivity to be present within such samples. We estimate low ng levels
of scrapie positive brain equivalent were deposited per m2 over 70 days, in a
barn previously occupied by sheep affected with scrapie. This movement of dusts
and the accumulation of low levels of scrapie infectivity within this
environment may in part explain previous observations where despite stringent
pen decontamination regimens healthy lambs still became scrapie infected after
apparent exposure from their environment alone [16]. The presence of sPMCA
seeding activity and by inference, infectious prions within dusts, and their
potential for airborne dissemination is highly novel and may have implications
for the spread of scrapie within infected premises. The low level circulation
and accumulation of scrapie prion containing dust material within the farm
environment will likely impede the efficient decontamination of such scrapie
contaminated buildings unless all possible reservoirs of dust are removed.
Scrapie containing dusts could possibly infect animals during feeding and
drinking, and respiratory and conjunctival routes may also be involved. It has
been demonstrated that scrapie can be efficiently transmitted via the nasal
route in sheep [17], as is also the case for CWD in both murine models and in
white tailed deer [18-20].
The sources of dust borne prions are unknown but it seems reasonable to
assume that faecal, urine, skin, parturient material and saliva-derived prions
may contribute to this mobile environmental reservoir of infectivity. This work
highlights a possible transmission route for scrapie within the farm
environment, and this is likely to be paralleled in CWD which shows strong
similarities with scrapie in terms of prion dissemination and disease
transmission. The data indicate that the presence of scrapie prions in dust is
likely to make the control of these diseases a considerable challenge.
Friday, December 14, 2012
DEFRA U.K. What is the risk of Chronic Wasting Disease CWD being introduced
into Great Britain? A Qualitative Risk Assessment October 2012
snip...
In the USA, under the Food and Drug Administration’s BSE Feed Regulation
(21 CFR 589.2000) most material (exceptions include milk, tallow, and gelatin)
from deer and elk is prohibited for use in feed for ruminant animals. With
regards to feed for non-ruminant animals, under FDA law, CWD positive deer may
not be used for any animal feed or feed ingredients. For elk and deer considered
at high risk for CWD, the FDA recommends that these animals do not enter the
animal feed system. However, this recommendation is guidance and not a
requirement by law.
Animals considered at high risk for CWD include:
1) animals from areas declared to be endemic for CWD and/or to be CWD
eradication zones and
2) deer and elk that at some time during the 60-month period prior to
slaughter were in a captive herd that contained a CWD-positive animal.
Therefore, in the USA, materials from cervids other than CWD positive
animals may be used in animal feed and feed ingredients for non-ruminants.
The amount of animal PAP that is of deer and/or elk origin imported from
the USA to GB can not be determined, however, as it is not specified in TRACES.
It may constitute a small percentage of the 8412 kilos of non-fish origin
processed animal proteins that were imported from US into GB in 2011.
Overall, therefore, it is considered there is a __greater than negligible
risk___ that (nonruminant) animal feed and pet food containing deer and/or elk
protein is imported into GB.
There is uncertainty associated with this estimate given the lack of data
on the amount of deer and/or elk protein possibly being imported in these
products.
snip...
36% in 2007 (Almberg et al., 2011). In such areas, population declines of
deer of up to 30 to 50% have been observed (Almberg et al., 2011). In areas of
Colorado, the prevalence can be as high as 30% (EFSA, 2011). The clinical signs
of CWD in affected adults are weight loss and behavioural changes that can span
weeks or months (Williams, 2005). In addition, signs might include excessive
salivation, behavioural alterations including a fixed stare and changes in
interaction with other animals in the herd, and an altered stance (Williams,
2005). These signs are indistinguishable from cervids experimentally infected
with bovine spongiform encephalopathy (BSE). Given this, if CWD was to be
introduced into countries with BSE such as GB, for example, infected deer
populations would need to be tested to differentiate if they were infected with
CWD or BSE to minimise the risk of BSE entering the human food-chain via
affected venison.
snip...
The rate of transmission of CWD has been reported to be as high as 30% and
can approach 100% among captive animals in endemic areas (Safar et al.,
2008).
snip...
In summary, in endemic areas, there is a medium probability that the soil
and surrounding environment is contaminated with CWD prions and in a
bioavailable form. In rural areas where CWD has not been reported and deer are
present, there is a greater than negligible risk the soil is contaminated with
CWD prion.
snip...
In summary, given the volume of tourists, hunters and servicemen moving
between GB and North America, the probability of at least one person travelling
to/from a CWD affected area and, in doing so, contaminating their clothing,
footwear and/or equipment prior to arriving in GB is greater than negligible.
For deer hunters, specifically, the risk is likely to be greater given the
increased contact with deer and their environment. However, there is significant
uncertainty associated with these estimates.
snip...
Therefore, it is considered that farmed and park deer may have a higher
probability of exposure to CWD transferred to the environment than wild deer
given the restricted habitat range and higher frequency of contact with tourists
and returning GB residents.
snip...
Saturday, January 31, 2015
European red deer (Cervus elaphus elaphus) are susceptible to Bovine
Spongiform Encephalopathy BSE by Oral Alimentary route
I strenuously once again urge the FDA and its industry constituents, to
make it MANDATORY that all ruminant feed be banned to all ruminants, and this
should include all cervids as soon as possible for the following
reasons...
======
In the USA, under the Food and Drug Administrations BSE Feed Regulation (21
CFR 589.2000) most material (exceptions include milk, tallow, and gelatin) from
deer and elk is prohibited for use in feed for ruminant animals. With regards to
feed for non-ruminant animals, under FDA law, CWD positive deer may not be used
for any animal feed or feed ingredients. For elk and deer considered at high
risk for CWD, the FDA recommends that these animals do not enter the animal feed
system.
***However, this recommendation is guidance and not a requirement by law.
======
31 Jan 2015 at 20:14 GMT
*** Ruminant feed ban for cervids in the United States? ***
31 Jan 2015 at 20:14 GMT
Research Project: TRANSMISSION, DIFFERENTIATION, AND PATHOBIOLOGY OF
TRANSMISSIBLE SPONGIFORM ENCEPHALOPATHIES
Title: Scrapie transmits to white-tailed deer by the oral route and has a
molecular profile similar to chronic wasting disease
Authors
item Greenlee, Justin item Moore, S - item Smith, Jodi - item Kunkle,
Robert item West Greenlee, M -
Submitted to: American College of Veterinary Pathologists Meeting
Publication Type: Abstract Only Publication Acceptance Date: August 12, 2015
Publication Date: N/A Technical Abstract: The purpose of this work was to
determine susceptibility of white-tailed deer (WTD) to the agent of sheep
scrapie and to compare the resultant PrPSc to that of the original inoculum and
chronic wasting disease (CWD). We inoculated WTD by a natural route of exposure
(concurrent oral and intranasal (IN); n=5) with a US scrapie isolate. All
scrapie-inoculated deer had evidence of PrPSc accumulation. PrPSc was detected
in lymphoid tissues at preclinical time points, and deer necropsied after 28
months post-inoculation had clinical signs, spongiform encephalopathy, and
widespread distribution of PrPSc in neural and lymphoid tissues. Western
blotting (WB) revealed PrPSc with 2 distinct molecular profiles. WB on cerebral
cortex had a profile similar to the original scrapie inoculum, whereas WB of
brainstem, cerebellum, or lymph nodes revealed PrPSc with a higher profile
resembling CWD. Homogenates with the 2 distinct profiles from WTD with clinical
scrapie were further passaged to mice expressing cervid prion protein and
intranasally to sheep and WTD. In cervidized mice, the two inocula have distinct
incubation times. Sheep inoculated intranasally with WTD derived scrapie
developed disease, but only after inoculation with the inoculum that had a
scrapie-like profile. The WTD study is ongoing, but deer in both inoculation
groups are positive for PrPSc by rectal mucosal biopsy. In summary, this work
demonstrates that WTD are susceptible to the agent of scrapie, two distinct
molecular profiles of PrPSc are present in the tissues of affected deer, and
inoculum of either profile readily passes to deer.
White-tailed Deer are Susceptible to Scrapie by Natural Route of Infection
Jodi D. Smith, Justin J. Greenlee, and Robert A. Kunkle; Virus and Prion
Research Unit, National Animal Disease Center, USDA-ARS
Interspecies transmission studies afford the opportunity to better
understand the potential host range and origins of prion diseases. Previous
experiments demonstrated that white-tailed deer are susceptible to sheep-derived
scrapie by intracranial inoculation. The purpose of this study was to determine
susceptibility of white-tailed deer to scrapie after a natural route of
exposure. Deer (n=5) were inoculated by concurrent oral (30 ml) and intranasal
(1 ml) instillation of a 10% (wt/vol) brain homogenate derived from a sheep
clinically affected with scrapie. Non-inoculated deer were maintained as
negative controls. All deer were observed daily for clinical signs. Deer were
euthanized and necropsied when neurologic disease was evident, and tissues were
examined for abnormal prion protein (PrPSc) by immunohistochemistry (IHC) and
western blot (WB). One animal was euthanized 15 months post-inoculation (MPI)
due to an injury. At that time, examination of obex and lymphoid tissues by IHC
was positive, but WB of obex and colliculus were negative. Remaining deer
developed clinical signs of wasting and mental depression and were necropsied
from 28 to 33 MPI. Tissues from these deer were positive for scrapie by IHC and
WB. Tissues with PrPSc immunoreactivity included brain, tonsil, retropharyngeal
and mesenteric lymph nodes, hemal node, Peyer’s patches, and spleen. This work
demonstrates for the first time that white-tailed deer are susceptible to sheep
scrapie by potential natural routes of inoculation. In-depth analysis of tissues
will be done to determine similarities between scrapie in deer after
intracranial and oral/intranasal inoculation and chronic wasting disease
resulting from similar routes of inoculation.
see full text ;
PO-039: A comparison of scrapie and chronic wasting disease in white-tailed
deer
Justin Greenlee, Jodi Smith, Eric Nicholson US Dept. Agriculture;
Agricultural Research Service, National Animal Disease Center; Ames, IA USA
White-tailed deer are susceptible to the agent of sheep scrapie by
intracerebral inoculation
snip...
It is unlikely that CWD will be eradicated from free-ranging cervids, and
the disease is likely to continue to spread geographically [10]. However, the
potential that white-tailed deer may be susceptible to sheep scrapie by a
natural route presents an additional confounding factor to halting the spread of
CWD. This leads to the additional speculations that
1) infected deer could serve as a reservoir to infect sheep with scrapie
offering challenges to scrapie eradication efforts and
2) CWD spread need not remain geographically confined to current endemic
areas, but could occur anywhere that sheep with scrapie and susceptible cervids
cohabitate.
This work demonstrates for the first time that white-tailed deer are
susceptible to sheep scrapie by intracerebral inoculation with a high attack
rate and that the disease that results has similarities to CWD. These
experiments will be repeated with a more natural route of inoculation to
determine the likelihood of the potential transmission of sheep scrapie to
white-tailed deer. If scrapie were to occur in white-tailed deer, results of
this study indicate that it would be detected as a TSE, but may be difficult to
differentiate from CWD without in-depth biochemical analysis.
2012
PO-039: A comparison of scrapie and chronic wasting disease in white-tailed
deer
Justin Greenlee, Jodi Smith, Eric Nicholson US Dept. Agriculture;
Agricultural Research Service, National Animal Disease Center; Ames, IA USA
snip...
The results of this study suggest that there are many similarities in the
manifestation of CWD and scrapie in WTD after IC inoculation including early and
widespread presence of PrPSc in lymphoid tissues, clinical signs of depression
and weight loss progressing to wasting, and an incubation time of 21-23 months.
Moreover, western blots (WB) done on brain material from the obex region have a
molecular profile similar to CWD and distinct from tissues of the cerebrum or
the scrapie inoculum. However, results of microscopic and IHC examination
indicate that there are differences between the lesions expected in CWD and
those that occur in deer with scrapie: amyloid plaques were not noted in any
sections of brain examined from these deer and the pattern of immunoreactivity
by IHC was diffuse rather than plaque-like.
*** After a natural route of exposure, 100% of WTD were susceptible to
scrapie.
Deer developed clinical signs of wasting and mental depression and were
necropsied from 28 to 33 months PI. Tissues from these deer were positive for
PrPSc by IHC and WB. Similar to IC inoculated deer, samples from these deer
exhibited two different molecular profiles: samples from obex resembled CWD
whereas those from cerebrum were similar to the original scrapie inoculum. On
further examination by WB using a panel of antibodies, the tissues from deer
with scrapie exhibit properties differing from tissues either from sheep with
scrapie or WTD with CWD. Samples from WTD with CWD or sheep with scrapie are
strongly immunoreactive when probed with mAb P4, however, samples from WTD with
scrapie are only weakly immunoreactive. In contrast, when probed with mAb’s 6H4
or SAF 84, samples from sheep with scrapie and WTD with CWD are weakly
immunoreactive and samples from WTD with scrapie are strongly positive. This
work demonstrates that WTD are highly susceptible to sheep scrapie, but on first
passage, scrapie in WTD is differentiable from CWD.
2011
*** After a natural route of exposure, 100% of white-tailed deer were
susceptible to scrapie.
White-tailed Deer are Susceptible to Scrapie by Natural Route of Infection
Jodi D. Smith, Justin J. Greenlee, and Robert A. Kunkle; Virus and Prion
Research Unit, National Animal Disease Center, USDA-ARS
Interspecies transmission studies afford the opportunity to better
understand the potential host range and origins of prion diseases. Previous
experiments demonstrated that white-tailed deer are susceptible to sheep-derived
scrapie by intracranial inoculation. The purpose of this study was to determine
susceptibility of white-tailed deer to scrapie after a natural route of
exposure. Deer (n=5) were inoculated by concurrent oral (30 ml) and intranasal
(1 ml) instillation of a 10% (wt/vol) brain homogenate derived from a sheep
clinically affected with scrapie. Non-inoculated deer were maintained as
negative controls. All deer were observed daily for clinical signs. Deer were
euthanized and necropsied when neurologic disease was evident, and tissues were
examined for abnormal prion protein (PrPSc) by immunohistochemistry (IHC) and
western blot (WB). One animal was euthanized 15 months post-inoculation (MPI)
due to an injury. At that time, examination of obex and lymphoid tissues by IHC
was positive, but WB of obex and colliculus were negative. Remaining deer
developed clinical signs of wasting and mental depression and were necropsied
from 28 to 33 MPI. Tissues from these deer were positive for scrapie by IHC and
WB. Tissues with PrPSc immunoreactivity included brain, tonsil, retropharyngeal
and mesenteric lymph nodes, hemal node, Peyer’s patches, and spleen. This work
demonstrates for the first time that white-tailed deer are susceptible to sheep
scrapie by potential natural routes of inoculation. In-depth analysis of tissues
will be done to determine similarities between scrapie in deer after
intracranial and oral/intranasal inoculation and chronic wasting disease
resulting from similar routes of inoculation.
see full text ;
Monday, November 3, 2014
Persistence of ovine scrapie infectivity in a farm environment following
cleaning and decontamination
PPo3-22:
Detection of Environmentally Associated PrPSc on a Farm with Endemic
Scrapie
Ben C. Maddison,1 Claire A. Baker,1 Helen C. Rees,1 Linda A. Terry,2 Leigh
Thorne,2 Susan J. Belworthy2 and Kevin C. Gough3 1ADAS-UK LTD; Department of
Biology; University of Leicester; Leicester, UK; 2Veterinary Laboratories
Agency; Surry, KT UK; 3Department of Veterinary Medicine and Science; University
of Nottingham; Sutton Bonington, Loughborough UK
Key words: scrapie, evironmental persistence, sPMCA
Ovine scrapie shows considerable horizontal transmission, yet the routes of
transmission and specifically the role of fomites in transmission remain poorly
defined. Here we present biochemical data demonstrating that on a
scrapie-affected sheep farm, scrapie prion contamination is widespread. It was
anticipated at the outset that if prions contaminate the environment that they
would be there at extremely low levels, as such the most sensitive method
available for the detection of PrPSc, serial Protein Misfolding Cyclic
Amplification (sPMCA), was used in this study. We investigated the distribution
of environmental scrapie prions by applying ovine sPMCA to samples taken from a
range of surfaces that were accessible to animals and could be collected by use
of a wetted foam swab. Prion was amplified by sPMCA from a number of these
environmental swab samples including those taken from metal, plastic and wooden
surfaces, both in the indoor and outdoor environment. At the time of sampling
there had been no sheep contact with these areas for at least 20 days prior to
sampling indicating that prions persist for at least this duration in the
environment. These data implicate inanimate objects as environmental reservoirs
of prion infectivity which are likely to contribute to disease transmission.
HIGHEST INFECTION RATE ON SEVERAL CWD CONFIRMED CAPTIVES
CHRONIC WASTING DISEASE CWD WISCONSIN Almond Deer (Buckhorn Flats) Farm
Update DECEMBER 2011
The CWD infection rate was nearly 80%, the highest ever in a North American
captive herd.
RECOMMENDATION: That the Board approve the purchase of 80 acres of land for
$465,000 for the Statewide Wildlife Habitat Program in Portage County and
approve the restrictions on public use of the site.
SUMMARY:
For Immediate Release Thursday, October 2, 2014
Dustin Vande Hoef 515/281-3375 or 515/326-1616 (cell) or
Dustin.VandeHoef@IowaAgriculture.gov
*** TEST RESULTS FROM CAPTIVE DEER HERD WITH CHRONIC WASTING DISEASE
RELEASED 79.8 percent of the deer tested positive for the disease
DES MOINES – The Iowa Department of Agriculture and Land Stewardship today
announced that the test results from the depopulation of a quarantined captive
deer herd in north-central Iowa showed that 284 of the 356 deer, or 79.8% of the
herd, tested positive for Chronic Wasting Disease (CWD).
*** see history of this CWD blunder here ;
On June 5, 2013, DNR conducted a fence inspection, after gaining approval
from surrounding landowners, and confirmed that the fenced had been cut or
removed in at least four separate locations; that the fence had degraded and was
failing to maintain the enclosure around the Quarantined Premises in at least
one area; that at least three gates had been opened;and that deer tracks were
visible in and around one of the open areas in the sand on both sides of the
fence, evidencing movement of deer into the Quarantined Premises.
The overall incidence of clinical CWD in white-tailed deer was 82%
Species (cohort) CWD (cases/total) Incidence (%) Age at CWD death (mo)
”The occurrence of CWD must be viewed against the contest of the locations
in which it occurred. It was an incidental and unwelcome complication of the
respective wildlife research programmes. Despite it’s subsequent recognition as
a new disease of cervids, therefore justifying direct investigation, no specific
research funding was forthcoming. The USDA veiwed it as a wildlife problem and
consequently not their province!” page 26.
Friday, January 29, 2016
Wisconsin CWD-positive white-tailed deer found on Iowa County farm January
29, 2016
Saturday, January 31, 2015
Chronic wasting disease found in bull elk killed on private Utah
ranch
Sunday, January 17, 2016
Texas 10,000 deer in Texas tested for deadly disease CWD TSE, but not
tested much in the most logical place, the five-mile radius around the Medina
County captive-deer facility where it was discovered
Sunday, January 10, 2016
TEXAS MEDIA REPORTING A BIT OF GOOD NEWS ON CWD TESTING SO FAR INSTEAD OF
TAHC which is still mum, still refusing timely updates to the public TSE PRION
DISEASE
Friday, January 15, 2016
TEXAS PARKS & WILDLIFE CWD Ante-Mortem Testing Symposium Texas Disposal
Systems Events Pavilion January 12, 2016
Tuesday, December 29, 2015
*** TEXAS MONTHLY CHRONIC WASTING DISEASE CWD JANUARY 2016 DEER BREEDERS
STILL DON'T GET IT $
Chronic Wasting Unease
*** The emergence of a deadly disease has wildlife officials and deer
breeders eyeing each other suspiciously. ***
Saturday, December 12, 2015
*** CHRONIC WASTING DISEASE CWD TSE PRION REPORT DECEMBER 14, 2015
actually, if these two new captive suspect CWD cases are confirmed, that
would be a total of 7 cases of CWD in Captive in Texas, PLUS the 8 other
confirmed cases of CWD up in the Texas Trans Pecos region to date in the mule
deer. So the total would be 15 cases of the CWD TSE Prion aka mad cow type
disease in Cervid in Texas, to date. just to put everything in perspective. BUT,
that would only be IF and WHEN, the TAHC or the TPWD ever confirm these two new
recent suspect CWD cases.
I am only reminded of another great article Shannon Tompkins wrote years
ago, when the CWD TSE Prion shoe was on the other foot...
March 14, 2002
"Ten years ago, elk and deer (imported into Texas) were not regulated at
all," said Dr. Ken Waldrup, an epidemiologist with the Texas Animal Health
Commission and one of the agency's point men on CWD. "If Texas doesn't already
have CWD, then I say that proves that God is a Texan. "For everyone's sake, I
sure hope He is."
========================
*** Tompkins: There are a lot of reasons to be concerned about CWD
Houston Chronicle Published 5:30 a.m., Thursday, March 14, 2002
where are any statements from the TAHC or TPWD either confirming this, or
refuting this???
Saturday, November 14, 2015 TEXAS CAPTIVE BREEDER CHRONIC WASTING DISEASE
CWD 2 MORE SUSPECTS DECTECTED
Monday, November 16, 2015
*** TEXAS PARKS AND WILDLIFE DEPARTMENT EXECUTIVE DIRECTOR ORDER NO.
015-006
*** Chronic Wasting Disease (CWD) immediate danger to the white-tailed deer
and mule deer resources of Texas
Saturday, November 14, 2015
TEXAS CAPTIVE BREEDER CHRONIC WASTING DISEASE CWD 2 MORE SUSPECTS DECTECTED
BRINGING NUMBER TO 7 DETECTED IN CAPTIVE BREEDER (if/when the last two are
confirmed).
Thursday, November 05, 2015
*** TPW Commission Adopts Interim Deer Breeder Movement Rules
Friday, October 09, 2015
Texas TWA Chronic Wasting Disease TSE Prion Webinars and Meeting October
2015
Saturday, October 03, 2015
TEXAS CHRONIC WASTING DISEASE CWD TSE PRION GOD MUST NOT BE A TEXAN 2002 TO
2015
Thursday, September 24, 2015
TEXAS Hunters Asked to Submit Samples for Chronic Wasting Disease CWD TSE
Prion Testing
*** I cannot stress enough to all of you, for the sake of your family and
mine, before putting anything in the freezer, have those deer tested for CWD.
...terry
***raw and uncut
Sunday, August 23, 2015
TAHC Chronic Wasting Disease CWD TSE Prion and how to put lipstick on a pig
and take her to the dance in Texas
Friday, August 07, 2015
*** Texas CWD Captive, and then there were 4 ?
Thursday, August 06, 2015
*** WE HAVE LOST TEXAS TO CWD TASK FORCE CATERING TO INDUSTRY
Tuesday, July 21, 2015
*** Texas CWD Medina County Herd Investigation Update July 16, 2015 ***
Thursday, July 09, 2015
TEXAS Chronic Wasting Disease (CWD) Herd Plan for Trace-Forward Exposed
Herd with Testing of Exposed Animals
Wednesday, July 01, 2015
TEXAS Chronic Wasting Disease Detected in Medina County Captive Deer
Wednesday, March 18, 2015
Chronic Wasting Disease CWD Confirmed Texas Trans Pecos March 18,
2015
Wednesday, March 25, 2015
Chronic Wasting Disease CWD Cases Confirmed In New Mexico 2013 and 2014
UPDATE 2015
Thursday, May 02, 2013
*** Chronic Wasting Disease (CWD) Texas Important Update on OBEX ONLY
TEXTING
Monday, February 11, 2013
TEXAS CHRONIC WASTING DISEASE CWD Four New Positives Found in Trans Pecos
Tuesday, July 10, 2012
Chronic Wasting Disease Detected in Far West Texas
Monday, March 26, 2012
Texas Prepares for Chronic Wasting Disease CWD Possibility in Far West
Texas
CWD TEXAS TAHC OLD FILE HISTORY
updated from some of my old files. ...
Subject: CWD SURVEILLANCE STATISTICS TEXAS (total testing figures less than
50 in two years)
Date: Sun, 25 Aug 2002 21:06:49 –0700
From: "Terry S. Singeltary Sr."
Reply-To: Bovine Spongiform Encephalopathy
To: BSE-L@uni-karlsruhe.de
######## Bovine Spongiform Encephalopathy #########
greetings list members,
here are some figures on CWD testing in TEXAS...TSS
Dear Dr. Singletary,
In Fiscal Year 2001, seven deer from Texas were tested by the National
Veterinary Services Laboratory (NVSL) for CWD (5 fallow deer and 2 white-tailed
deer). In Fiscal Year 2002, seven elk from Texas were tested at NVSL (no deer).
During these two years, an additional six elk and one white-tailed deer were
tested at the Texas Veterinary Medical Diagnostic Laboratory (TVMDL). In Fiscal
Year 2002, four white-tailed deer (free-ranging clinical suspects) and at least
eight other white-tailed deer have been tested at TVMDL. One elk has been tested
at NVSL. All of these animals have been found negative for CWD. Dr. Jerry Cooke
of the Texas Parks and Wildlife Department also has records of 601 clinically
ill white-tailed deer which were necropsied at Texas A&M during the late
1960's and early 1970's, and no spongiform encepalopathies were noted. Thank you
for your consideration.
xxxxxxx
Texas Animal Health Commission
(personal communication...TSS)
Austin 8 news
snip...
"There's about 4 million deer in the state of Texas, and as a resource I
think we need to be doing as much as we can to look for these diseases," said
Doug Humphreys with Texas Parks and Wildlife. "Right now Texas is clear. We
haven't found any, but that doesn't mean we don't look."
With approximately 4 million animals, Texas has the largest population of
white-tailed deer in the nation. In addition, about 19,000 white-tailed deer and
17,000 elk are being held in private facilities. To know if CWD is present in
captive herds, TPWD and Texas Animal Health Commission are working with breeders
to monitor their herds.
How is it spread?
It is not known exactly how CWD is spread. It is believed that the agent
responsible for the disease may be spread both directly (animal to animal
contact) and indirectly (soil or other surface to animal). It is thought that
the most common mode of transmission from an infected animal is via saliva,
feces, and urine.
some surveillance?
beyond the _potential_ methods of transmissions above, why, not a single
word of SRM of various TSE species in feed as a source?
it's a known fact they have been feeding the deer/elk the same stuff as
cows here in USA.
and the oral route has been documented of CWD to mule deer fawns in lab
studies.
not to say that other _potential_ transmission mechanisms are possible, but
why over look the obvious?
TSS
########### http://mailhost.rz.uni-karlsruhe.de/warc/bse-l.html
############
From: Ken Waldrup, DVM, PhD (host25-207.tahc.state.tx.us)
Subject: Re: CWD SAMPLING TEXAS (but NOT in the obvious place, the NM,
TEXAS border)
Date: December 15, 2003 at 3:43 pm PST
In Reply to: CWD SAMPLING TEXAS (but NOT in the obvious place, the NM,
TEXAS border) posted by TSS on December 12, 2003 at 2:15 pm:
Dear sirs:
With regard to your comment about Texas NOT looking for CWD along the New
Mexico border, it is painfully obvious that you do not know or understand the
natural distribution of mule deer out there or the rights of the land owners in
this state. As of 15 December 2003, a total of 42 deer had been sampled from
what we call "Trans-Pecos", beyond the Pecos River. Mule deer are very widely
dispersed through this area, sometimes at densities of one animal per 6 square
miles. The Texas Parks and Wildlife Department does not have the legal authority
to trepass on private property to collect deer. Some landowners are cooperative.
Some are not. Franklin State Park is at the very tip of Texas, and deer from the
park have been tested (all negative). One of the single largest land owners
along the border is the National Park Service. Deer and elk from the Guadalupe
Peak National Park cannot be collected with federal permission. The sampling
throughout the state is based on the deer populations by eco-region and is
dictated by the availability of funds. I am concerned about your insinuation
that CWD is a human health risk. We are at a stand-off - you have no proof that
it is and I have no definitive proof that it isn't. However I would say that the
inferred evidence from Colorado, Wyoming and Wisconsin suggests that CWD is not
a human health concern (i.e. no evidence of an increased incidence of human
brain disorders within the CWD "endemic" areas of these states). From my
professional interactions with the Texas Parks and Wildlife Department, I can
definitely say that they want to do a thorough and sound survey throughout the
state, not willy-nilly "look here, look there". There are limitations of
manpower, finances and, in some places, deer populations. I would congratulate
TPWD for doing the best job with the limitations at hand rather than trying to
browbeat them when you obviously do not understand the ecology of West Texas.
Thank you for your consideration.
======================
From: TSS (216-119-139-126.ipset19.wt.net)
Subject: Re: CWD SAMPLING TEXAS (but NOT in the obvious place, the NM,
TEXAS border)
Date: December 16, 2003 at 11:03 am PST
In Reply to: Re: CWD SAMPLING TEXAS (but NOT in the obvious place, the NM,
TEXAS border) posted by Ken Waldrup, DVM, PhD on December 15, 2003 at 3:43 pm:
HEllo Dr. Waldrup,
thank you for your comments and time to come to this board.
Ken Waldrup, DVM, PhD states;
> it is painfully obvious that you do not know or understand the natural
distribution of mule deer out there or the rights of the land owners in this
state...
TSS states;
I am concerned about all deer/elk not just mule deer, and the rights of
land owners (in the case with human/animal TSEs) well i am not sure of the
correct terminology, but when the States deer/elk/cattle/sheep/humans are at
risk, there should be no rights for land owners in this case. the state should
have the right to test those animals. there are too many folks out there that
are just plain ignorant about this agent. with an agent such as this, you cannot
let landowners (and i am one) dictate human/animal health, especially when you
cannot regulate the movement of such animals...
Ken Waldrup, DVM, PhD states;
> Deer and elk from the Guadalupe Peak National Park cannot be collected
with federal permission.
TSS states;
I do not understand this? so there is no recourse of action even if every
deer/elk was contaminated with CWD in this area (hypothetical)?
Ken Waldrup, DVM, PhD states;
> I am concerned about your insinuation that CWD is a human health risk.
We are at a stand-off - you have no proof that it is and I have no definitive
proof that it isn't. However I would say that the inferred evidence from
Colorado, Wyoming and Wisconsin suggests that CWD is not a human health concern
(i.e. no evidence of an increased incidence of human brain disorders within the
CWD "endemic" areas of these states)...
TSS states;
NEXT, let's have a look at the overall distribution of CWD in Free-Ranging
Cervids and see where the CWD cluster in NM WSMR borders TEXAS;
Current Distribution of Chronic Wasting Disease in Free-Ranging Cervids
NOW, the MAP of the Exoregion where the samples were taken to test for CWD;
CWD SURVEILLANCE SAMPLE SUBMISSIONS TEXAS
Ecoregions of TEXAS
IF you look at the area around the NM WSMR where the CWD cluster was and
where it borders TEXAS, that ecoregion is called Trans Pecos region. Seems if my
Geography and my Ciphering is correct ;-) that region only tested 55% of it's
goal. THE most important area on the MAP and they only test some 96 samples,
this in an area that has found some 7 positive animals? NOW if we look at the
only other border where these deer from NM could cross the border into TEXAS,
this area is called the High Plains ecoregion, and again, we find that the
sampling for CWD was pathetic. HERE we find that only 9% of it's goal of CWD
sampling was met, only 16 samples were tested from some 175 that were suppose to
be sampled.
AS i said before;
> SADLY, they have not tested enough from the total population to
> know if CWD is in Texas or not.
BUT now, I will go one step further and state categorically that they are
not trying to find it. just the opposite it seems, they are waiting for CWD to
find them, as with BSE/TSE in cattle, and it will eventually...
snip...end...TSS
===============================
2005
SEE MAP OF CWD ON THE BORDER OF NEW MEXICO VERY CLOSE TO TEXAS ;
NO update on CWD testing in Texas, New Mexico that i could find. I have
inquired about it though, no reply yet...
-------- Original Message --------
Subject: CWD testing to date TEXAS ?
Date: Mon, 09 May 2005 12:26:20 –0500
From: "Terry S. Singeltary Sr."
To: kristen.everett@tpwd.state.tx.us
Hello Mrs. Everett,
I am most curious about the current status on CWD testing in Texas. could
you please tell me what the current and past testing figures are to date and
what geographical locations these tests have been in. good bust on the illegal
deer trapping case. keep up the good work there.........
thank you, with kindest regards,
Terry S. Singeltary Sr. P.O. Box 42 Bacliff, Texas USA 77518
-------- Original Message --------
Subject: CWD testing in New Mexico
Date: Mon, 09 May 2005 14:39:18 –0500
From: "Terry S. Singeltary Sr."
To: ispa@state.nm.us
Greetings,
I am most curious of the current and past CWD testing in New Mexico, and
there geographical locations...
thank you,
Terry S. Singeltary SR. CJD Watch
#################### https://lists.aegee.org/bse-l.html
####################
2006
----- Original Message -----
From: "Terry S. Singeltary Sr." flounder9@VERIZON.NET
To: BSE-L@aegee.org
Sent: Saturday, December 23, 2006 1:47 PM
Subject: CWD in New Mexico 35 MILES FROM TEXAS BORDER and low testing
sampling figures -- what gives TAHC ???
Subject: CWD in New Mexico 35 MILES FROM TEXAS BORDER and low testing
sampling figures -- what gives TAHC ???
Date: December 23, 2006 at 11:25 am PST
Greetings BSE-L members,
i never know if i am going crazy or just more of the same BSe. several
years ago i brought up the fact to the TAHC that CWD was literally at the Texas
borders and that the sample size for cwd testing was no where near enough in the
location of that zone bordering NM. well, i just wrote them another letter
questioning this again on Dec. 14, 2006 (see below) and showed them two
different pdf maps, one referencing this url, which both worked just fine then.
since then, i have NOT received a letter from them answering my question, and
the url for the map i used as reference is no longer working? i had reference
this map several times from the hunter-kill cwd sampling as of 31 August 2005
pdf which NO longer works now??? but here are those figures for that zone
bordering NM, for those that were questioning the url. the testing samples
elsewhere across Texas where much much more than that figure in the zone
bordering NM where CWD has been documented bordering TEXAS, near the White Sands
Missile Range. SO, why was the Texas hunter-kill cwd sampling as of 31 August
2005 document removed from the internet??? you know, this reminds me of the
infamous TEXAS MAD COW that i documented some 7 or 8 months before USDA et al
documented it, when the TAHC accidentally started ramping up for the
announcement on there web site, then removed it (see history at bottom). i am
not screaming conspiracy here, but confusious is confused again on the ciphering
there using for geographical distribution of cwd tissue sample size survey, IF
they are serious about finding CWD in TEXAS. common sense would tell you if cwd
is 35 miles from the border, you would not run across state and have your larger
samples there, and least samples 35 miles from where is what
found..........daaa..........TSS
THEN NOTICE CWD sample along that border in TEXAS, Three Year Summary of
Hunter-Kill CWD sampling as of 31 August 2005 of only 191 samples, then compare
to the other sample locations ;
TPWD has been conducting surveys of hunter-kill animals since 2002 and has
collected more than 7300 samples (as of 31 August 2005). In total, there have
been over 9400 samples, both hunter-kill and private samples, tested in Texas to
date, and no positives have been found.
SO, out of a total of 9,400 samples taken for CWD surveillance in TEXAS
since 2002 of both hunter-kill and private kill, ONLY 191 samples have been
taken in the most likely place one would find CWD i.e. the border where CWD has
been documented at TEXAS and New Mexico
latest map NM cwd old data
CWD in New Mexico ;
What is the Department doing to prevent the spread of CWD?
Chronic wasting disease (CWD) was recently detected in a mule deer from
Unit 34. Until 2005, CWD had only been found in Unit 19. With this discovery,
the Department will increase its surveillance of deer and elk harvested in Units
29, 30 and 34.
Lymph nodes and/or brain stems from every harvested deer and brain stems
from all elk taken in Unit 34 will be sampled.
snip...
CWD SURVEILLANCE TEXAS
SNIP...SEE FULL TEXT ;
2011 – 2012
Friday, October 28, 2011
CWD Herd Monitoring Program to be Enforced Jan. 2012 TEXAS
Greetings TAHC et al,
A kind greetings from Bacliff, Texas.
In reply to ;
Texas Animal Health Commission (TAHC) Announcement October 27, 2011
I kindly submit the following ;
***for anyone interested, here is some history of CWD along the Texas, New
Mexico border, and my attempt to keep up with it...terry
snip...
see history CWD Texas, New Mexico Border ;
Monday, March 26, 2012
3 CASES OF CWD FOUND NEW MEXICO MULE DEER SEVERAL MILES FROM TEXAS BORDER
Sunday, October 04, 2009
CWD NEW MEXICO SPREADING SOUTH TO TEXAS 2009 2009 Summary of Chronic
Wasting Disease in New Mexico New Mexico Department of Game and Fish
Saturday, January 23, 2016
Texas new interim rule governing Deer Management Permit (DMP) activities as
part of the state’s response to the detection of chronic wasting disease (CWD)
in captive deer populations
Saturday, January 23, 2016
Texas Chronic Wasting Disease Response Update and Interim Deer Management
Permit Rules Recommended Adoption of Proposed Rules
TSS
posted by Terry S. Singeltary Sr. at
9:10 AM
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